Vehicle-brake.



G. E. JACKSON VEHICLE BRAKE. APPLICATION rmm SEPT. 22, 1909.

Patented May 3, 1910.

UNITED STATES PATENT OFFICE.

CHARLES E. JACKSON, 01? BUSHNELL, ILLINOIS, ASSIGNOR OF ONE-HALF TOI-IIIIMISIEJLLEv AND ONE-HALF TO JAMES HENRY SPIKER, 0F BUSHNELL,ILLINOIS.

VEHICLE-BRAKE.

Specification of Letters Patent.

Patented May 3, 1910.

Continuation of application Serial No. 468,943, filed December 23, 1908.This application filed September To all whom it may concern:

Be it known that I, CHARLES E. J ACKSON, a citizen of the United Statesresiding at Bushnell, in the county of lVIcDonough, State of Illinois,have invented certain new and useful Improvements in Vehicle-Brakes, ofwhich the following is a specification, reference being had to theaccompanying drawing.

This invention relates to improved braking apparatus for vehicles and isparticularly designed for use in connection with wagons.

It has for its leading object .to provide improved apparatus that willcompel the brake-beam to move evenly toward the wheels so that the twoshoes or blocks carried at or near the ends of said beam will engage thewheels simultaneously and with an equal degree of ressure.

In many of the rake constructions now employed, in connection withwagons, the brake-beam is so moved as to cause the application of thebrake shoe at one end of the beam to one wheel in advance of theapplication of the other shoe to the other wheel,

which is not only highly objectionable in that it tends to unduly wearone of the said shoes or blocks much more rapidly than the other, but italso fails to give the desired uniform braking effect at both sides ofthe wagon at the same time. This objection I overcome by myconstruction, and, briefly stated, I do it by connecting ahorizontallydisposed brake-beam that is slidingly secured beneath thebottom of the wagon-bed to a slotted pivoted lever whose end is providedwith a stud or bolt to which the connecting means between the brake-beamand the lever are secured, said stud or bolt also projecting into aguiding device which in the construction shown is a longitudinal slot ina bracket or bar extending lengthwise of the wagon-bed and therefore ofcourse at right angles to the direction of movement of the brake-beam.This slot in the bracket or bar compels the stud or bolt to move in astraight line and the slotting of the lever permits the lever to so moveit. That which I believe to be new is set forth in the claims.

In the drawings :Figure 1 is a bottom View of the rear portion of anordinary wagon equipped with my improved braking Serial No. 519,096.

short studs 11 each located close to the innor edge of one of the clips10 and serving to insure the beam being moved evenly back and forth insaid clips 10.

12 indicates a pair of rods, the forward ends of which pass through thebrake beam 8 and are suitably secured to such beam. In practice, Iprefer to provide such ends with screw-thrcads, as shown, so that bymeans of the securing nuts shown that are employed to hold the rods tothe beam said rods can be adjusted as desired so as to vary the degreeof movement of the beam toward and from the wheels so as to compensatefor the wearing away of the surfaces of the brake shoes. As shown, theserods 12 converge toward the rear, the rear ends being bent to form eyes13, as best shown in the sectional view in Fig. 2.

14 indicates a horizontally-disposed lever pivotally secured at 15 tothe bottom of the wagon-bed. The outer end of the lever 14 has pivotallyattached to it a long forwardlyextending rod 16 which extends toward thefront of the wagon and is there suitabl connected to a hand or footlever not s own. The inner end of the lever 14 is provided in theconstruction shown with a longitudinal slot 17.

18 indicates a bracket or bar extending longitudinally of the wagon-bedand secured to the under face of the bottom of said bed, said bracket orbar being provided as shown with a longitudinal slot 19.

20 indicates a stud or bolt that connects together the two rods 12 andthe lever 14, said stud or bolt passing through the eyes 13 of the rods12 and also through the slots 17 and 19 in the parts 14 and 18,respectively. In order that the strain may be properly borne by the studor bolt 20, one of the rods 12 is connected near the top of the boltwhile the other one is located near the lower end thereof, as best shownin Fig. 2. The bolt also has pivotally secured upon it a small roller 21of a diameter to fit within the slot 17 of the lever 14E, such rollerbeing provided for anti-friction purposes. The arrangement of the partswith respect to the bolt is, as clearly shown in Fig. 2,- first, an eye13 of one of the rods 12 near the inner end of the bolt, next the leverit, then the bracket or bar 18, and then the eye 13 of the other rod 12,with of course the roller 21 in the slot of the lever 1 1, as stated.

WVith the construction shown and above described, it will be seen thatupon a forward pull upon the rod 16 the lever lt will be turned to drawback the rods 12 and through them carry back the brake beam 8 so as toapply the brakeshoes to the wheels. The slot 19 in the bracket or bar 18forms a guide for the bolt which insures its moving forward and back ina perfectly straight line and hence correspondingly moving the brakebeam, with the result that both shoes are applied simultaneously to thewheels and with an equal degree of pressure. This straight forward andback movement is important, as hereinbefore pointed out, and ispermitted on account of the operating lever 14 being slotted.

What I claim as my invention and desire to secure by Letters Patentis 1. A vehicle brake comprising a shoe-carrying bar, a lever having anelongated longitudinal slot, a bolt carrying a friction roller, saidfriction roller being received by said slot, rod connections betweensaid bolt and said shoe-carrying bar, said rod connections beingdisposed in different horizontal planes and having said bolt fixed totheir convergent ends.

2. A vehicle brake comprising a shoe-carrying bar, a lever, means foractuating said lever, a bracket having an elongated slot, a bolt, rodconnections between said bolt and said shoe-carrying bar, said leverhaving an elongated slot, and a friction roller carried by said bolt andreceived by the slot of said lever, said bolt also being received by theslot of said bracket.

3. In a vehicle -brake, the combination wit-h a vehicle-body, abrake-beam and means for slidingly securing the beam in place beneathsaid body, of a slotted lever, a stud or bolt connected with said lever,a guiding device for compelling a straight backward and forward movementof said stud or bolt when said lever is operated, and connectionsbetween said stud or bolt and said brakebeam.

l. In a vehicle -brake, the combination with a vehicle-body, abrake-beam and means for slidingly securing the beam in place beneathsaid body, of a bracket or bar at one side of said beam, said bracket orbar being provided with a slot that extends in a direction that issubstantially at right angles to said beam, a stud or bolt slidinglyarranged in said slot, a pivoted slotted lever connected with said bolt,and means connecting said stud or bolt with said brake-beam.

5. In a vehicle -brake, the combination with a vehicle-body, abrake-beamand means for slidingly securing the beam in place beneath said body, ofa bracket or bar at one side of said beam, said bracket or bar beingprovided with a slot extending at substantially right angles to the saidbeam, a pivoted lever having a slot in one end, a stud or bolt extendingthrough both of said slots, and means connecting said stud or bolt withsaid brake-beam.

CHARLES E. JACKSON.

Witnesses:

CHARLES IIOEKENBERG, CARL A. Bars.

